could trail
Verbe régulier : trail - trailed- trailed
Traduction française : suivre - traîner 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could trail
you could trail
she could trail
we could trail
you could trail
they could trail 	I could be trailing
you could be trailing
she could be trailing
we could be trailing
you could be trailing
they could be trailing	I could have trailed
you could have trailed
she could have trailed
we could have trailed
you could have trailed
they could have trailed	I could have been trailing
you could have been trailing
she could have been trailing
we could have been trailing
you could have been trailing
they could have been trailing	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I couldn't trail
you couldn't trail
she couldn't trail
we couldn't trail
you couldn't trail
they couldn't trail 	I couldn't be trailing
you couldn't be trailing
she couldn't be trailing
we couldn't be trailing
you couldn't be trailing
they couldn't be trailing	I couldn't have trailed
you couldn't have trailed
she couldn't have trailed
we couldn't have trailed
you couldn't have trailed
they couldn't have trailed	I couldn't have been trailing
you couldn't have been trailing
she couldn't have been trailing
we couldn't have been trailing
you couldn't have been trailing
they couldn't have been trailing	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I trail?
could you trail?
could she trail?
could we trail?
could you trail?
could they trail? 	could I be trailing?
could you be trailing?
could she be trailing?
could we be trailing?
could you be trailing?
could they be trailing? 	could I have trailed?
could you have trailed?
could she have trailed?
could we have trailed?
could you have trailed?
could they have trailed? 	could I have been trailing?
could you have been trailing?
could she have been trailing?
could we have been trailing?
could you have been trailing?
could they have been trailing? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
couldn't I trail?
couldn't you trail?
couldn't she trail?
couldn't we trail?
couldn't you trail?
couldn't they trail? 	couldn't I be trailing?
couldn't you be trailing?
couldn't she be trailing?
couldn't we be trailing?
couldn't you be trailing?
couldn't they be trailing? 	couldn't I have trailed?
couldn't you have trailed?
couldn't she have trailed?
couldn't we have trailed?
couldn't you have trailed?
couldn't they have trailed? 	couldn't I have been trailing?
couldn't you have been trailing?
couldn't she have been trailing?
couldn't we have been trailing?
couldn't you have been trailing?
couldn't they have been trailing?